SCI (the Steel Construction Institute) has been a trusted, independent source of information and engineering expertise globally for 25 years, and remains the leading, independent provider of technical expertise and disseminator of best practice to the steel construction sector.

Since 2006 the "SCI Assessed" quality mark has been awarded to affirm that a manufacturers' technical data has been independently verified by SCI. The first company that achieved the SCI assessed status was Arcelor Sheffield Ltd with their Tab-Deck product in 2006. By 2012 there were  24  companies who had been awarded the SCI Assessed and 27 products.

The following products have achieved the “SCI Assessed” status.